This is the 5675th most frequent Portuguese word.
albanese
"Albanese" in Portuguese means "Albanian" (relating to Albania or its people, language, or culture).
Here, 'albanês' is used as an adjective to specify that the ambassador is Albanian.
O embaixador albanês chegou ao Brasil ontem.
The Albanian ambassador arrived in Brazil yesterday.
In this sentence, 'albanesa' is an adjective describing the history, attributing it to Albania.
Nós aprendemos hoje sobre a história albanesa na aula.
We learned today about Albanian history in class.
Here, 'albaneses' is a noun referring to people from Albania.